Motor-regulator.



No. 862,226. PATENTED AUG. 6, 1907. G. H. WHITTINGHAM.

MOTOR REGULATOR.

APPLICATION FILED JULYIG, 190s.

25 4 j wifggmmfoz at Lit HERBERT 'WHITTINGHAM, OF NEW YORK, N. Y.,

ASSIGNMENTS, TO THE AUTOMATIC SWITCH YORK.

ASSIGNCR, BY MESNE COMPANY, A CORPORATION OF NEW MOTOR-REGULATOR.

Specification of Letters Patent.

Patented Aug. 6, 1907.

Application filed July 16,1903. Seria1N0.165,779.

To all whom it may concern:

Be it known that Gnonen HAM, a citizen of the United States, residing at New York, in the county of New York and State of New York, has invented certain new and useful Improvements in Motor-Regulators, of which the following is HERBERT WHITTING- a lull, clear, and exact specification.

This invention relates to the regulation and control of electric motors, and its objectis to provide suitable electro-mechanical means for controlling and regulating the starting and operation of electric motors.

In carrying out my present invention, I make use of mechanical means for effecting the insertion and removal of suitable resistance in the armature and field circuits of the motor, and by electrical means, I control the operation of the aforesaid mechanical means. The electrical means are under the immediate control of the operator and may be located at a distance from the motor, or the mechanical-means, as for example, upon the car, in an elevator system. 1 am also able to provide for the safe and economical starting of motors and the nice regulations of the speed of the same, by means of apparatus which in the hands of ignorant or careless operators cannot be made to operate in such manner as to cause damage -to the motor.

The invention will be described'more fully with reference to the form thereof illustrated in the accompanying drawing, in which Figure 1 is a diagrammatic view of the various parts,

and Fig. 2 is a detail. A

In'the drawing a rep esents the armature of the motor to be controlled, and b represents the field circuit of the motor; ll represents the resistance in the armature circuit, and e a resistance in the field circuit. These resistances are controlled by the arms f, 9 through the respective rods is, Z. The clutches are driven by any suitable power, or by the motor to be controlled, which'is geared or belted to the driven wheel m upon the shaft n, which shaft carries worm gears 0, p, which drive the clutches h and 'i. .This form of clutch mechanism for controlling the resistances is described in my patent No. 728,814. Obviously any suitable mechanical means may be employed for the purpose in lieu of the specific means here do.- scribed. The switch (1, controlled by the operator may be of any convenient type and located according to individual conditions. In the drawings I have shown a convenient type comprising a shaft 1 carrying the bladess and t and a segmental plate u suitably shaped tomake contact with the proper contacts. The contact jaws for blades s and tare sufiiciently long to permit movement of the blades after contact has been made, and thus permit plate u to be operated. The switch q may be located upon the car and thethrough binding post 53, wire h moves the resistance arm shaft r turned by a suitable handle, or may be located in the elevator shaft and shaft r turned by an ordinary shipper rope connected with wheel -v.

1n the position shown in the drawing, the switch has been turned so that the blades s and i make contact with the armature terminals, the contact wheel 5 carried by shaft r is in "contact with the contact 4, and plate it connects all of the contacts 24, 25, 72 and 81. The motor when the switch is in this position will be running at full speed. I

To start the motor the operator turns the switch so that blades s and t make contact with the armature terminals, contact wheel 5 with contact 4, and the edge 'u/ of plate it connects contacts 24 and 25. This establishes the field circuit of the motor as follows:

From terminal 1. by binding post 2, wire 3, contacts 4 and .5, wire6, binding post 7, wire 8, binding post 9, wires 10 and binding post 11, wire 12, coil 13, which operates clutch h, thence by wire 14, coil 15, of retaining magnet 16, wire 17, coil 18, which operates the pivotedswitch arm w, wire 19, binding post 20, wire 21, binding post 22, wire 23, to contacts 24 and 25, wire 26, binding post 27, and terminal 28. The closing of this circuit causes coil 18 to move the pivoted switch arm to into contact with-contact 45 and thus establish the field circuit as follows: From terminal 1 to binding post 11 as before, then by wire 29, switch arm g, resistanceeif any be i'n circuit, wire 30, contact 31, wire 32,

contact 33, wire 34, field B, contact 36, wires 37, 39 contact 40, wire 41., contact 42, wire 43 to plate 44 upon which the pivoted switch arm w, is mounted, thence by a switcharm 'w to contact 45, wire 46, coil 47, which operates as amagnet to hold the switch arm in in contact with the contact 45, thence by wire 48 to binding post 49, and wire 50 t0 binding'post 51, and by wire.

1 to' binding post 11, as before, thence by resistance aim f through the armature wire 56 to bushing 57, carried by shaft r, switch blade 8 to contact 58, wire 59, to the'armature terminal 60, through the armature to armature terminal 61, thence by wire 62, to contact 63, and by blade tto the bushing 38, and thence by Wires 39, 41, 43, blade 44, blade 20, and wires 46, 48,50 and binding post 51, to the terminal to. These circuits having been established the clutch f over the resistance contacts d and automatically cuts out of the armature circuit a resistance therein and starts the motor automatically according to predetermined; conditions. The motor having been started, its speed may be controiled by inserting resistance in the field circuit.

resistance d to wire 52,

54, to binding post 55 4 Any desiredamount oi the resistance may be inserted and left inserted, and the motor thereby maintained at any desired speed To accomplish this, the shaft r,

is turned so as to cause the edge e of the blade u to 5 make contact with the contact 72. This establishes a u on a roocr bar carried b the resistance arm 17.

The magnet is not sufliciently strong to prevent the operation of theresislance arm by the electric clutch.

This circuitiis from binding post 11 by wires 29, 64, 65, magnet 66, wire 67, binding post 68, wire 69, binding 15 postv 70, wire 71, to contact 72, thence to contact 25,

wire 26 to binding post 217 and to terminal 28. As soon as the operator moves the switch so as to bring the edge u of the blade u into engagement with-the contact 81 he will establish the circuit thr o ugh the clutch which; operates the resistance 9 to insert resistance in the field circuit. This clutch circuit is from binding post 1]. by wires 29, 64, 73, to coil 74, which operates the clutch 1, wire 75, retaining magnet 76, wire 7 7, binding post 7 8, binding post 79, wire 80, contact 81, and

thence by blade u to Contact 25 and by wire 26 to bind ing post 27 and terminal 28. This clutch circuit having been established the clutchi operates to niove rei l sistarice-arm gto insert resistance in the field circuit 1 of the motor, thus causing the s eedof the motor to 30 increase as the resistance is inserted. The operator may maintain the speed of the motor constant by simply moving the switch so'as to break contact between the edge u and-contact 81 which breaks the circuit of the clutch i, whereupon the magnet 66, which attracts the proper plates g, prevents further movement of the resistance-arm g.- The resistance 2 may be cut out by moving the switch so as'to break contact between the edge a and contact 72 whereupon the circuitjoi magnet 66 is broken and the resistance arm'g is permitted to 40 drop back-to its normal position. Likewise the resistance-d may be inserted in'the armature circuit by moving the switch so as to cause edge u to break contact with contacts 24 and 25. When this occu'= the. motor will stop. The motor may be reversed by turning-the switch in the opposite direction, whereupon ..'the same sequenceof operations will e'n'sue but the current will be introduced to the armature of the motor in the opposite direction.

It will be noted that by reason of the fact that driving pulley m is belted directly to the armature olthe motor to be regulated. a given rotation of the motor armature will effect a corresponding removal or insertion of resistances and the ratio of movement will always be the same when the respective circuits are made, and

moreover the ratio of gear-*0 to gear p may be so determined, as shown in the drawing, as to cause the arm to move over the resistance It more slowly than thealui 9 moves over resistance 11, thereby increasing the armature current with the requisite slowness while the mo- 60 tor is starting, with a full iield. and permitting a more .rapid variaiii" ol'thc lield for speed regulation alter the motor is s ari'cd.

lie-understood that the invention may be It will modified iu'various respects without departing from the i. :vention, and I, therefore, do not limit myself to the precise construction herein shown and described.

Having thus described my invention, I declare that what I claim as new and desire to secure by Letters Patent is;

1. The combination of mechanical meansi'or controlling the resistance in the armature circuit of a motor. mechnnicul n ans for controlling resistance in the licld cir euit and elecirical means for controlling the operation of each of said mechanical means separately. substantially as described. Y

2. The combination of mechanical means for controlling. the resistance in the armature circuit of a motor mechanical means for controllingresistance in the iield ci cuii and electrical means adapted to separately cuuse said mechanical means to first remove resistance from the mature circuit and then insert resistance in the field circuit. substantially as described.

3., The combination of mechanical means for controlling the resistance in the armnlure circuit of a motor. 11hchanical menus for controlling resistance in the field ciccult. and electrical means for controlling the operation oL said mechanical means. said means being adapted to orlQSl the operation of said mechanical menus without changing the amount of resistance all-early introduced or removed. substantially as described.

4. The combination oi mechanical means for controlling the resistance in the armature circuit of a motor, nicchauical means for controlling resistance in the field cir cuil'. elcclric circuits lillolliiih' the respective mechanical menus. and :i switch adapted to nnilic the circuit controllllll' 'ihc armature controlling means. and to make and break the circuit conii'olline; the field controlling means, without ali'eciing the first circuit, substantially as de scribed I The combination with a motor, of. an armature resistance normally in circuit and a field resistance normally out of circuit. mechanical means for removing, and inserting said resi tam-cs. clutches for governing; said means. clcctric. circuits controlling said clutches. and means for controlling said circuits to operatesaid clutches succcssivcly,whereby upon closing" said circuits said rno chanical means are caused to automatically reinove re sistance from tlie'armuture circuit and thou insert rosisltance in the field circuit, substantially as described.

6. The combination with a motor. or means for starting the motor with a strong field-means ,ior increasing the armature current. means for weakening the field, meansfol causing successive operation of said means automatically and means for causing the variation of the armature and iield circuits at different rates of speed, substantially as des ibed.

T. The combination with a motor. of mechanical means for respectively varying the armature and field circuits thereof, electrical circuits adapted to affect the operation of snidnicchanicul means and means for closing said circuits separately, suhstantially as described.

h. The combinniion with a motor, or mechanica means for respectivehv varying the armature and field circuits thereof, said means operating at different rates of speed,

and electrical menus for effecting the successit'e operation] of said mechanical means, substantially as descrioed.

. 9, The ombination with ii motor. of means'for regul'nt ing the szune. means for eii'ecting the operation of said regulating means in proportion tothe movenieut otflthe motor. and additional independent means capable oi? further regulating the speed of the motor and operable at the will o the operator. substantially as described.

10. The combination with a motor, 01' means for varying the :umaiure and field circuits, electric circuits respecii e'l v conli-olling' aid means, and a switch adopted to successively inukc said circuits, substantially as described;

ii. The combination with a motor. of means for varying: the field and armature circuits thereof, the said nieans'hein actuated succes ively by the revolution of the motor. means whereby ouc oi said means starls with, the motor, and means whereby the other can be connected to he tially as described,

driven by the motor at the will of the operator, su stan 12. The combination the field and armature circuits thereof, the said means beand separate electrical means for Controlling the operation of cach of said first named means, substantially asdescribed.

substantially ashescribed. V

14. The combination with a motor, of means for starting the motor with a strong field and weak armature current, means for increasing the armature current, and electrically and then controlled mechanically actuated means for then weakening the field to inerease the speed, the field weakening means being capable of manual regulation to secure varying strengths of field, substantially as described.

15. The combination'ivith a motor, of means for regulating the starting thereof in proportion to the movement of the armature, and means for then further regulating the speed of the motor, said means being actuated by the movement of the armature but manually controllable by electrical means to secure varying speeds, -substantially as described.

In testimony whereof of two wltnesses.

- GEORGE'HERBERT WHITTINGHAM.

Iaflix my signature, in presence Witnesses:

ANTHONY .T. ERNEST, GEORGE N. Knm 

